connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)),
&session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>)));
connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)),
&session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>)));